CN101098311B - Picture live transmission method and device in instant communication - Google Patents
Picture live transmission method and device in instant communication Download PDFInfo
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- CN101098311B CN101098311B CN2006100901520A CN200610090152A CN101098311B CN 101098311 B CN101098311 B CN 101098311B CN 2006100901520 A CN2006100901520 A CN 2006100901520A CN 200610090152 A CN200610090152 A CN 200610090152A CN 101098311 B CN101098311 B CN 101098311B
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Abstract
The invention discloses a picture real-time transmission method of instant communication and a relative device, for resolving the problems of prior art which has bad picture clearness or can not see whole picture. The invention decodes picture at picture sender, codes picture via multiple resolutions, and transmits the picture via flow media and network to a picture receiver, the picture receiver receives and decodes the picture, and displays the decoded picture to user, therefore, user can see clearer picture. The picture sender comprises a decoder, a coder, and a sender. The picture receiver comprises a receive unit, a buffer, a timer, a decoder, and a display unit.
Description
Technical field
The present invention relates to the Internet and computer application field, particularly in instant messaging, realize the method and the device of picture real-time Transmission.
Background technology
Along with digital product popularizing in people's life, digital picture has become a kind of common multimedia shared model on Network Transmission.Along with the increase of picture clarity, the raising of pixel, the volume of picture is also increasing.The user must wait until that multimedia file is downloaded to subscriber's local fully, just can carry out multimedia appreciation when the transmitting multimedia file.
At present, existed some picture compression technology can effectively reduce the volume of picture.Existing digital picture is many to be preserved with jpg (a kind of image compression format of joint image expert group definite value) or gif (by a kind of graphics file format of CompuServe company exploitation, it is widely used in the animation file processing) compressed format.Wherein the file of jpg compressed format is presented to the user in the mode of lining by line scan line by line with picture, and the user can only see the subregion of picture when file is not downloaded fully, can not see the picture overall picture.Wherein the file of gif compressed format is with different resolution picture to be scanned, can be with integrity profile, and mode is shown to the user clearly gradually, and the picture color can not surpass 256.
Because the file of jpg form is the mode that shows line by line, the user need wait for a period of time and can see full picture, understands the picture theme, and experience effect is bad.And the documentation requirements color of gif form can not surpass 256, far can not satisfy the requirement of present high pixel, high-resolution, high quality of colour, picture that can't high resolution displayed.
Summary of the invention
The invention provides a kind of method and device thereof of in instant messaging, realizing the picture real-time Transmission, exist picture clarity not enough or can't see the problem of full picture at once in the prior art in order to solve.
The inventive method comprises:
Transmitting terminal carries out multiresolution analysis to the original image pixel, adopt wavelet analysis technology that picture is carried out compressed encoding, form the files in stream media of compression, and in this files in stream media, define size, data format, the smallest dimension of picture and the top of file of coding parameter that comprises original image, send this files in stream media;
Receiving terminal is selected a kind of resolution from described multiple resolution, set the decomposed class of wavelet analysis, and according to top of file, adopts the wavelet analysis algorithm that described files in stream media is decoded, and Shows Picture according to decoded image data.
This method also comprises step:
Before coding, the picture that will compress and/or encode earlier decompresses and/or is decoded as original image.
The files in stream media that receiving terminal elder generation buffer memory receives, and the files in stream media behind the buffer memory decoded.Receiving terminal is beginning decoded stream media file after the initial flow media file size of buffer memory surpasses the picture smallest dimension that defines in the top of file; And follow-up timing detects the files in stream media in the buffer memory, and when the files in stream media of finding buffer memory increases it is decoded.
This method also comprises step:
Before decoding, the user can select the resolution desiring to Show Picture.
Receiving terminal adopts wavelet analysis technology that files in stream media is carried out decoding processing according to the decomposed class of the resolution setting wavelet transformation of selecting.
The device that sends picture among the present invention comprises:
Encoder, be used for the original image pixel is carried out multiresolution analysis, adopt wavelet analysis technology that picture is carried out compressed encoding, form the files in stream media of compression, and in this files in stream media, define size, data format, the smallest dimension of picture and the top of file of coding parameter that comprises original image;
Transmitting element is used to send described files in stream media;
Receiving element is used to receive the files in stream media that the image data by different resolution forms;
Decoder is used for selecting a kind of resolution from described multiple resolution, sets the decomposed class of wavelet analysis, and according to top of file, adopts wavelet analysis algorithm and top of file that files in stream media is decoded and obtains image data under this resolution;
Display unit is used for Showing Picture according to image data.
Dispensing device also comprises:
Reduction unit, the picture that is used for compressing and/or to have encoded decompresses and/or is decoded as original image.
Buffer is used for the files in stream media that buffer memory receives, and described decoder is decoded from this buffer reading flow media file.
Beneficial effect of the present invention is as follows:
Because the present invention is the picture compression coding method of adopting the multiresolution streaming, effectively the large volume picture is compressed; And the user can at first see the integrity profile of picture at receiving terminal, can understand the picture theme at once, and along with the increase of download, it is clear that picture becomes gradually, is shown to the user with dynamic effect, and visual experience is better.The user could not understand picture after not needing more wait picture is complete to download.The present invention is unqualified to the each side factor of picture, can adapt to the high-quality demand of present and following picture.The user can preserve picture according to the resolution of its needs, needn't do compression to picture again and handle, and adopt the resolution of wavelet analysis technology to picture decoding can also raising original image.
Description of drawings
Figure 1A is a basic flow sheet in the present embodiment;
Figure 1B is the structural representation of picture dispensing device in the present embodiment;
Fig. 2 is the flow chart that the picture transmitting terminal sends picture in the present embodiment;
Fig. 3 is the structural representation of figure receiving device in the present embodiment;
Fig. 4 is the flow chart that the picture receiving terminal receives picture in the present embodiment.
Embodiment
Can not satisfy the requirement of high definition in order to solve picture in the prior art, and can not be faster in network transmission process with the problems such as user that are shown to of picture is complete.The present invention adopts streamed multimedia (stream media) transmission technology that picture is encoded, compressed according to the resolution of picture, makes picture be shown to the user with dynamic-form, and the user will see that picture becomes dynamic effect clearly gradually.The present invention is mainly used in the instant messaging process
Present embodiment is at first decoded to existing picture at the picture transmitting terminal, be decoded into original image, again this original image is carried out the streaming coding according to the multiresolution of pixel to it, the picture after will encoding then arrives the picture receiving terminal in the mode of Streaming Media by Network Transmission; The picture receiving terminal is decoded picture after receiving picture accordingly, and the most decoded picture is shown to the user.
Referring to Figure 1A, the concise and to the point step of the overall flow of picture live transmission method is as follows in the present embodiment:
Step 110: the picture transmitting terminal is decoded the existing compressed picture that the user sends, and forms original image.
Step 120: transmitting terminal carries out compressed encoding with original image by multiresolution streaming coding techniques.
Step 130: the picture after will encoding sends to the picture receiving terminal with the Streaming Media form by network.
Step 140: picture receiving terminal cache flow media file.
Step 150: the files in stream media to buffer memory is decoded accordingly, and it is shown to the receiving terminal user.
Be detailed description below to present embodiment.
Referring to Figure 1B, the device as transmitting terminal in the present embodiment comprises reduction unit 101, encoder 102 and transmitting element 103.
Transmitting element 103 is used for the files in stream media that received code device 102 sends, and it is sent to the picture receiving terminal by network.
Described coded system uses wavelet analysis to come picture is encoded.In spatial domain, wavelet analysis becomes different levels with signal decomposition, and each frequency band of small echo picture comprises the information such as edge, profile and texture of picture, the corresponding information of original image under different scale and different resolution.The decomposed class of wavelet transformation is being controlled the resolution and the yardstick of picture, and the decision user can understand the smallest dimension of picture, and this smallest dimension is that the limit to original image is approached under minimum resolution.
Described files in stream media reaches the degree that the user can understand the picture theme, in test historical test data is analyzed, the user is appreciated that the picture theme under certain resolution, this certain resolution is made as lowest resolution, by the wavelet analysis algorithm controls.
Referring to Fig. 2, in the present embodiment at the realization flow of transmitting terminal.The picture that the user is sent is decoded into original image, carries out multiresolution streaming coding according to the pixel of original image, forms files in stream media, and the defined file head, and itself and files in stream media are arrived the picture receiving terminal by internet transmission.The concrete implementation step of this method is as follows:
Step 201: the user sends picture at the picture transmitting terminal, and this picture is through the storage of prior art compressed format, and reduction unit 101 receives this picture.If what the user sent is the original image of uncompressed, then direct execution in step 203.
Step 202: reduction unit 101 is decoded into the preceding original image of compression with the picture decoding that receives, and this original image is sent to encoder 102.
Step 203: encoder 102 receives the original image that reduction unit 101 sends, and the picture pixel is carried out multiresolution analysis, adopts wavelet analysis technology that picture is carried out compressed encoding, forms the files in stream media of compression; The defined file head is sent to transmitting element 103 with this files in stream media simultaneously.
Step 204: the files in stream media after transmitting element 103 will be encoded arrives the picture receiving terminal by internet transmission.
Referring to Fig. 3, the receiving system in the present embodiment comprises receiving element 301, buffer 302, timer 303, decoder 304 and display unit 305.
Receiving element 301 is used to receive the files in stream media that forms from the image data by different resolution of internet transmission, and puts it into buffer 302; Point out the user to select photo resolution simultaneously,, then be defaulted as automatically and be equal to the photo resolution that transmitting terminal sends, or be the optimum resolution that the current form of receiving terminal can show if the user abandons selecting.Can also use the resolution of other parameter as acquiescence.
Buffer 302, the files in stream media that is used for receiving element 301 is received are accepted the triggering of timer 303 at local cache, regularly internal file are detected, if increase is arranged, then the files in stream media in the buffer memory are sent to decoder 304.After all files in stream media are sent to decoder 304, no longer accept the triggering of timer 303, discharge the file in the buffer memory.
Judgement measuring ability in the buffer 302 independently can be become detecting unit or detector, then buffer 302 comprises detecting unit and buffer unit; Or at receiving terminal increase detector.
Timer 303 is used for time control, according to the period parameter that pre-sets, regularly triggers the interior file of 302 pairs of buffer memorys of buffer and detects.
Decoder 304, be used for the files in stream media that reception buffer 302 sends,, this files in stream media decoded according to the decomposed class of user-selected resolution setting wavelet analysis, be decoded into the image data of corresponding resolution, and this image data is sent to display unit 305.
Display unit 305 is used for Rcv decoder 304 decoded image datas, and the picture that this image data is constituted is shown to the user.
Referring to Fig. 4, in the present embodiment in the operational process of receiving terminal.To receive files in stream media and put into buffer memory, accept setting out of timer, be shown to the user regularly to the files in stream media decoding, and with it.The concrete implementation step of this method is as follows:
Step 401: the files in stream media that receiving element 301 receives from internet transmission, and point out the user to select the photo resolution that will show, if the user abandons selecting, then be defaulted as automatically and be equal to the photo resolution that transmitting terminal sends, or be the optimum resolution that the current form of receiving terminal can show.Send this files in stream media to buffer 302, buffer 302 is buffered in it in local system, and receiving element 301 continues to receive the files in stream media from internet transmission then.
Buffer 302 can not need the triggering of timer 303 for the first time, automatically the files in stream media in the buffer memory is detected, if surpassed the file minimum value of top of file definition, then the files in stream media in the buffer memory sent to decoder 304 and decode, execution in step 404;
Continue to receive files in stream media then, till receiving all files in stream media, no longer accept the triggering of timer 303, timeing closing device 303 from internet transmission.
Step 402: timer 303 regularly triggers the interior file of 302 pairs of buffer memorys of buffer and detects, till timer 303 is closed according to the period parameter that pre-sets.
Step 403: buffer 302 detects file in the buffer memory, if the files in stream media that detects in the buffer memory has surpassed the file minimum value that top of file defines, then buffer 302 sends to decoder 304 with the files in stream media in the buffer memory and decodes execution in step 404, otherwise execution in step 401.
After the files in stream media in the buffer 302 surpasses the definition of header file, only judge when detecting whether files in stream media has increase at every turn, if having, then execution in step 404, otherwise execution in step 401.
Step 404: the files in stream media that decoder 304 reception buffers 302 send, decomposed class according to user-selected resolution setting wavelet analysis, adopt the wavelet analysis algorithm that this files in stream media is decoded, be decoded into the image data of corresponding resolution, and this image data is sent to display unit 305.
Step 405: the image data that display unit 305 Rcv decoders 304 send, and the picture that this image data is constituted is shown to the receiving terminal user.
Because the present invention is the picture compression coding method of adopting the multiresolution different scale, effectively the large volume picture is compressed; And in network, transmit with the Streaming Media form, the user can at first see the integrity profile of picture at receiving terminal, can understand the picture theme at once, increase along with download, it is clear that picture becomes gradually, is shown to the user with dynamic-form, and the user will see that picture becomes animation effect clearly gradually, could not understand picture after not needing long wait picture is complete to download, and visual experience is better.Because the present invention is unqualified to the each side factor of picture, so can adapt to the high-quality demand of present and following picture.The user can preserve picture according to the resolution of its needs, needn't do compression to picture again and handle, and adopt the resolution of wavelet analysis technology to picture decoding can also raising original image.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (10)
1. a picture live transmission method in instant messaging is characterized in that,
Transmitting terminal carries out multiresolution analysis to the original image pixel, adopt wavelet analysis technology that picture is carried out compressed encoding, form the files in stream media of compression, and in this files in stream media, define size, data format, the smallest dimension of picture and the top of file of coding parameter that comprises original image, send this files in stream media;
Receiving terminal is selected a kind of resolution from described multiple resolution, set the decomposed class of wavelet analysis, and according to top of file, adopts the wavelet analysis algorithm that described files in stream media is decoded, and Shows Picture according to decoded image data.
2. picture live transmission method as claimed in claim 1 is characterized in that, before coding, the picture that will compress and/or encode earlier decompresses and/or is decoded as original image.
3. picture live transmission method as claimed in claim 1 is characterized in that, the smallest dimension of picture is that the limit to original image is approached under minimum resolution.
4. picture live transmission method as claimed in claim 1 is characterized in that, the files in stream media that receiving terminal elder generation buffer memory receives, and the files in stream media behind the buffer memory decoded.
5. picture live transmission method as claimed in claim 4 is characterized in that, receiving terminal is beginning decoded stream media file after the initial flow media file size of buffer memory surpasses the picture smallest dimension that defines in the top of file; And follow-up timing detects the files in stream media in the buffer memory, and when the files in stream media of finding buffer memory increases it is decoded.
6. picture live transmission method as claimed in claim 1 is characterized in that, is selected the resolution of decoding picture in advance by the user at receiving terminal.
7. picture live transmission method as claimed in claim 1 is characterized in that, receiving terminal adopts wavelet analysis technology that files in stream media is carried out decoding processing according to the decomposed class of the resolution setting wavelet transformation of selecting.
8. one kind is used for the device that instantaneous communication system sends picture, it is characterized in that, comprising:
Encoder, be used for the original image pixel is carried out multiresolution analysis, adopt wavelet analysis technology that picture is carried out compressed encoding, form the files in stream media of compression, and in this files in stream media, define size, data format, the smallest dimension of picture and the top of file of coding parameter that comprises original image;
Transmitting element is used to send described files in stream media;
Receiving element is used to receive the files in stream media that the image data by different resolution forms;
Decoder is used for selecting a kind of resolution from described multiple resolution, sets the decomposed class of wavelet analysis, and according to top of file, adopts wavelet analysis algorithm and top of file that files in stream media is decoded and obtains image data under this resolution;
Display unit is used for Showing Picture according to image data.
9. the device of transmission picture as claimed in claim 8 is characterized in that, also comprises:
Reduction unit, the picture that is used for compressing and/or to have encoded decompresses and/or is decoded as original image.
10. the device of transmission picture as claimed in claim 8 is characterized in that, also comprises:
Buffer is used for the files in stream media that buffer memory receives, and described decoder is decoded from this buffer reading flow media file.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2006100901520A CN101098311B (en) | 2006-06-29 | 2006-06-29 | Picture live transmission method and device in instant communication |
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| CN2006100901520A CN101098311B (en) | 2006-06-29 | 2006-06-29 | Picture live transmission method and device in instant communication |
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| CN101098311A CN101098311A (en) | 2008-01-02 |
| CN101098311B true CN101098311B (en) | 2010-10-13 |
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| CN102693227B (en) * | 2011-03-22 | 2015-08-26 | 炬芯（珠海）科技有限公司 | A kind of output intent of swf file data, system and Flash player |
| CN102831111B (en) * | 2011-06-14 | 2015-12-16 | 腾讯科技（深圳）有限公司 | A kind of image display method and device |
| CN102624642A (en) * | 2011-08-05 | 2012-08-01 | 北京小米科技有限责任公司 | Method for sending instant message |
| CN103136208B (en) * | 2011-11-23 | 2016-03-30 | 腾讯科技（深圳）有限公司 | A kind of method of Showing Picture and device |
| CN103327042B (en) * | 2012-03-21 | 2015-12-16 | 腾讯科技（深圳）有限公司 | A kind of by batch picture uploading to the method for network album and a kind of client |
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| CN103796013A (en) * | 2014-01-17 | 2014-05-14 | 五八同城信息技术有限公司 | Method for photo compression in mobile terminal instant messaging |
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| CN106156132B (en) * | 2015-04-09 | 2020-04-03 | 阿里巴巴集团控股有限公司 | Picture loading display method and device |
| CN104796572A (en) * | 2015-04-22 | 2015-07-22 | 深圳市美贝壳科技有限公司 | Picture projection display method |
| CN104866322B (en) * | 2015-06-10 | 2019-03-29 | 联想(北京)有限公司 | A kind of the transmission display methods and electronic equipment of data information |
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